The invention belongs to the technical field of wood processing, and particularly relates to an in-depth wood carbonizing device. The in-depth wood carbonizing device comprises a microwave chamber, hot presses, atomizing water nozzles and an air pressure regulator. The hot presses are arranged in the middle of the interior of the microwave chamber. The atomizing water nozzles are arranged at the top of the interior of the microwave chamber. The air pressure regulator is arranged outside the microwave chamber and communicates with the microwave chamber. The in-depth wood carbonizing device is easy to operate and control, the condition of scorched outside with tender inside in the carbonizing process is avoided, same-quality carbonizing is achieved, more energy is saved, the production cost is greatly reduced, and the production efficiency is improved.